Southern Illinois University has responded to student protests against racism with a plan to boost campus diversity. The university plan released Tuesday comes one day after a student-led protest on its Carbondale campus drew several hundred participants.

Flatboats were the most prevalent form of transportation on the Ohio and Mississippi Rivers through the late 1700's and early 1800's. While the harsh, active river currents and salvaging settlers have left little to explore of these boats, the remains of one vessel have been found in the muddy banks of the Ohio. Kate Lochte welcomes SIU Carbondale Center for Archaeological Investigations Director Dr. Mark Wagner to Sounds Good to discuss his new book "The Wreck of the America in Southern Illinois: A Flatboat on the Ohio River."

Highway 91 goes north from Marion, Kentucky to the Ohio River, where there's a small ferry crossing to Cave-In-Rock, Illinois. That limestone cave, now a feature of a small state park along the banks of the river, was said to have harbored vicious river pirates at the turn of the 18th and 19th centuries, including the infamous Harpe Brothers. Dr. Mark Wagner, interim director and staff archeologist of Southern Illinois Carbondale's Center for Archeological Investigations, says that historical record only places one particular pirate there and his name was Samuel Mason. Kate Lochte speaks with Dr. Wagner on Sounds Good to learn more about the fearsome figure who prowled the Ohio and Mississippi Rivers.